BRE Daylight & Sunlight, Done Right
Independent daylight and sunlight analysis that meets BRE standards — helping you secure planning approval with clarity and confidence.
Understanding daylight is key to planning success
Daylight and sunlight play a vital role in both the comfort of future occupants and the likelihood of planning approval. Insufficient daylight analysis is one of the most common reasons for planning delays and refusals. Our BRE-compliant daylight and sunlight assessments give you the clarity and confidence to move forward.
We combine rigorous environmental modelling with strategic planning insight to demonstrate that your proposals meet – and often exceed – BRE standards. Our reports are carefully tailored to the scale and context of each project, from small infill schemes to large-scale masterplans.
Beyond compliance, we help clients and design teams make better design decisions — optimising building layouts, façade treatments, and massing to maximise light, reduce overshadowing, and enhance quality of life for residents.
By translating complex technical guidance into clear, defensible evidence, we enable planners, architects, and developers to align environmental quality with design ambition.
What is included in a BRE Daylight and Sunlight Assessment
Our daylight and sunlight reports are built around the latest BRE guidance, ensuring that your proposals are supported by robust, defensible evidence. Each assessment is tailored to your site’s geometry, orientation, and surrounding context — balancing environmental performance with design intent.
Our reports typically assess:
- Vertical Sky component
- Daylight Distribution and No Sky line
- Annual Probable Sunlight Hours
- Overshadowing to Gardens and Open Spaces
- Daylight and sunlight access within proposed rooms
Our team applies these metrics with professional judgement — interpreting results within a planning context rather than relying on thresholds alone. The outcome is a clear, balanced report that demonstrates compliance while strengthening your planning submission.
Why Choose Our Daylight & Sunlight Assessments
We don’t just run models — we translate technical data into actionable design insight.
With experience across residential, commercial, and mixed-use schemes, we help clients and design teams
achieve compliant, high-performing environments.
- Evidence-led & planning-focused: Each report aligns with national and local policy expectations and BRE guidance.
- Collaborative: We work with architects, planners and consultants to refine layouts early and avoid late rework.
- Practical & defensible: Clear documentation supports efficient dialogue with planning officers and consultees.
- Design-oriented: Guidance on massing, façade strategy and glazing to improve light quality and resident experience.
By combining environmental science with strategic planning insight, we reduce risk, minimise redesign,
and give your project a clear advantage at submission.
Discuss your daylight report requirements: call 03303 410210 or complete the form below.
Get in Touch
We’d love to hear about your project.